Finding the Fourth Proportional to 90,200.35, 124,482.71 and 49,915.81

Step by Step Solution

1. Step 1: Write the proportion equation
   90,200.35 : 124,482.71 = 49,915.81 : x
2. Step 2: Convert to fraction form
   90,200.35/124,482.71 = 49,915.81/x
3. Step 3: Cross multiply
   90,200.35x = 124,482.71 × 49,915.81
4. Step 4: Simplify right side
   90,200.35x = 6,213,655,300.65
5. Step 5: Solve for x
   x = 6,213,655,300.65/90,200.35
6. Step 6: Final answer
   x = 68,887.26